BE546137A - - Google Patents

Info

Publication number
BE546137A
BE546137A BE546137DA BE546137A BE 546137 A BE546137 A BE 546137A BE 546137D A BE546137D A BE 546137DA BE 546137 A BE546137 A BE 546137A
Authority
BE
Belgium
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication of BE546137A publication Critical patent/BE546137A/xx

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00Screwdrivers
    • B25B15/001Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/005Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with cross- or star-shaped cross-section
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0007Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
    • F16B23/0023Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially cross-shaped
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/919Screw having driving contacts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Surgical Instruments (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Joining Of Building Structures In Genera (AREA)
BE546137D 1955-03-16 BE546137A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US494726A US2847894A (en) 1955-03-16 1955-03-16 Socketed screw head with uniformly offset grooves

Publications (1)

Publication Number Publication Date
BE546137A true BE546137A (zh)

Family

ID=23965712

Family Applications (1)

Application Number Title Priority Date Filing Date
BE546137D BE546137A (zh) 1955-03-16

Country Status (6)

Country Link
US (2) US2847894A (zh)
BE (1) BE546137A (zh)
DE (1) DE1055887B (zh)
FR (1) FR1148891A (zh)
GB (1) GB789272A (zh)
NL (2) NL100665C (zh)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3187790A (en) * 1959-05-18 1965-06-08 Hi Shear Rivet Tool Company Screw and screw driver coupling
DE1172904B (de) * 1961-01-26 1964-06-25 Aer O Terq Inc Kreuzschlitz fuer Kopfschrauben
US3170364A (en) * 1963-05-06 1965-02-23 Robert K Johnson Recessed head screw
US3288190A (en) * 1964-09-21 1966-11-29 John F Holmes Self-locking screw with friction reducing driving means
US3494243A (en) * 1967-06-28 1970-02-10 Standard Pressed Steel Co Sealing fastener
US4084478A (en) * 1974-09-12 1978-04-18 Phillips Screw Company Screw heads
US4355552A (en) * 1980-04-14 1982-10-26 Technofast, Inc. Recessed head screw
USD270424S (en) 1980-10-22 1983-09-06 The Eastern Company Tool operator for tool-operated locks
USD270229S (en) 1980-10-22 1983-08-23 The Eastern Company Tool and operator head for tool-operated lock
US4998454A (en) * 1988-11-14 1991-03-12 Black & Decker Inc. Screwdriver bit for phillips-head fasteners
CN1073000C (zh) * 1996-12-05 2001-10-17 沃拉·沃克·赫尔曼·沃纳两合公司 改锥或改锥头
US6223634B1 (en) * 1997-10-03 2001-05-01 Phillips Screw Company Recessed head fastener and driver systems
US5957645A (en) 1997-10-31 1999-09-28 Phillips Screw Company Spiral drive system for threaded fasteners
US6164171A (en) * 1998-03-13 2000-12-26 Max Co., Ltd. Screwdriver used for screw tightener and screw suitably tightened by the screwdriver
US6199455B1 (en) 1999-03-08 2001-03-13 Jjct Enterprises, Inc. Driver, fastener and forming tool
US7293949B2 (en) * 2004-04-15 2007-11-13 Phillips Screw Company Spiral drive fastener with friction engageable surface
US7316535B2 (en) * 2005-11-14 2008-01-08 Ling-Fang Chen Screw with a convenient screw head
CA2729836A1 (en) * 2008-04-21 2009-10-29 Asia Fastening (Us), Inc. Drive system
US8291795B2 (en) 2010-03-02 2012-10-23 Phillips Screw Company Fastener system with stable engagement and stick fit
US10995788B2 (en) 2017-12-15 2021-05-04 Phillips Screw Company Stick fit fastener recess system
US11466720B2 (en) 2017-12-15 2022-10-11 Phillips Screw Company Stick fit fastener recess system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US101207A (en) * 1870-03-29 Improvement in screw and screw-driver
USRE15483E (en) * 1922-10-31 stirling
US1797390A (en) * 1929-02-04 1931-03-24 Frederick H Wood Screw driver designed to be keyed on a screw
US1956963A (en) * 1931-05-09 1934-05-01 Jr Fred Salmen One way screw
US2216382A (en) * 1939-11-01 1940-10-01 W H Holmes Screw
US2304704A (en) * 1939-12-04 1942-12-08 Winslow Foster Screw
AT175424B (de) * 1942-12-30 1953-07-10 Guest Keen & Nettlefolds Ltd Schraube, deren Kopf für den Angriff eines Schraubenziehers eine Ausnehmung aufweist
US2445978A (en) * 1945-05-07 1948-07-27 Domnic V Stellin Socket head screw
US2592462A (en) * 1951-09-11 1952-04-08 Res Eng & Mfg Recessed head fastener

Also Published As

Publication number Publication date
NL205416A (zh)
NL100665C (zh)
GB789272A (en) 1958-01-15
US2847894A (en) 1958-08-19
USRE24878E (en) 1960-09-27
FR1148891A (fr) 1957-12-17
DE1055887B (de) 1959-04-23

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